Comparative Study of Coaxial Main Rotor Aerodynamics in the Hover with the Usage of Two Methods of Computational Fluid Dynamics
The paper is focused on numerical modeling of the aerodynamic characteristics of a full-scale coaxial main rotor in hover. The simulation was performed using two approaches of computational fluid dynamics (CFD): the original free wake model (FWM) developed by the authors and the unsteady Reynolds-av...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Instituto de Aeronáutica e Espaço (IAE)
2021-03-01
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| Series: | Journal of Aerospace Technology and Management |
| Subjects: | |
| Online Access: | https://www.scielo.br/pdf/jatm/v13/2175-9146-jatm-13-e1821.pdf |
| _version_ | 1818015634327339008 |
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| author | Sergey Gennadievich Konstantinov Yuri Mikhailovich Ignatkin Pavel Viacheslavovich Makeev Sergey Olegovich Nikitin |
| author_facet | Sergey Gennadievich Konstantinov Yuri Mikhailovich Ignatkin Pavel Viacheslavovich Makeev Sergey Olegovich Nikitin |
| author_sort | Sergey Gennadievich Konstantinov |
| collection | DOAJ |
| description | The paper is focused on numerical modeling of the aerodynamic characteristics of a full-scale coaxial main rotor in hover. The simulation was performed using two approaches of computational fluid dynamics (CFD): the original free wake model (FWM) developed by the authors and the unsteady Reynolds-averaged Navier–Stokes (URANS) equations method based on the Ansys Fluent software. The structure of the rotor vortex wake, flow images, vorticity and induced velocity fields, total and distributed aerodynamic characteristics of the rotor, including the rotor performance and figure of merit diagrams, have been analyzed. A comparison between FWM/URANS based calculations and calculated/experimental data by other authors has been performed. A satisfactory match of these data confirms reliability of used methods when modeling the aerodynamic characteristics of coaxial rotors. The FMW demonstrates a significant advantage in speed and resources intensity when calculating the total aerodynamic characteristics of a coaxial rotor. The URANS method makes it possible to model with significant accuracy the effects associated with the blade vortex interactions and pressure distribution over the blade surface. Finally, conclusions about most effectiveness of joint application of considered methods in solving complex problems of coaxial
rotor aerodynamics has been made. |
| first_indexed | 2024-04-14T06:59:52Z |
| format | Article |
| id | doaj.art-16bb5f03bbb8425e96df8f44414489a4 |
| institution | Directory Open Access Journal |
| issn | 1984-9648 2175-9146 |
| language | English |
| last_indexed | 2024-04-14T06:59:52Z |
| publishDate | 2021-03-01 |
| publisher | Instituto de Aeronáutica e Espaço (IAE) |
| record_format | Article |
| series | Journal of Aerospace Technology and Management |
| spelling | doaj.art-16bb5f03bbb8425e96df8f44414489a42022-12-22T02:06:47ZengInstituto de Aeronáutica e Espaço (IAE)Journal of Aerospace Technology and Management1984-96482175-91462021-03-0113118211821https://doi.org/10.1590/jatm.v13.1210Comparative Study of Coaxial Main Rotor Aerodynamics in the Hover with the Usage of Two Methods of Computational Fluid DynamicsSergey Gennadievich Konstantinov0Yuri Mikhailovich Ignatkin1Pavel Viacheslavovich Makeev2Sergey Olegovich Nikitin3.National Research University.National Research University.National Research University.National Research UniversityThe paper is focused on numerical modeling of the aerodynamic characteristics of a full-scale coaxial main rotor in hover. The simulation was performed using two approaches of computational fluid dynamics (CFD): the original free wake model (FWM) developed by the authors and the unsteady Reynolds-averaged Navier–Stokes (URANS) equations method based on the Ansys Fluent software. The structure of the rotor vortex wake, flow images, vorticity and induced velocity fields, total and distributed aerodynamic characteristics of the rotor, including the rotor performance and figure of merit diagrams, have been analyzed. A comparison between FWM/URANS based calculations and calculated/experimental data by other authors has been performed. A satisfactory match of these data confirms reliability of used methods when modeling the aerodynamic characteristics of coaxial rotors. The FMW demonstrates a significant advantage in speed and resources intensity when calculating the total aerodynamic characteristics of a coaxial rotor. The URANS method makes it possible to model with significant accuracy the effects associated with the blade vortex interactions and pressure distribution over the blade surface. Finally, conclusions about most effectiveness of joint application of considered methods in solving complex problems of coaxial rotor aerodynamics has been made.https://www.scielo.br/pdf/jatm/v13/2175-9146-jatm-13-e1821.pdfcoaxial main rotorhovercfdurans methodfree wake model |
| spellingShingle | Sergey Gennadievich Konstantinov Yuri Mikhailovich Ignatkin Pavel Viacheslavovich Makeev Sergey Olegovich Nikitin Comparative Study of Coaxial Main Rotor Aerodynamics in the Hover with the Usage of Two Methods of Computational Fluid Dynamics Journal of Aerospace Technology and Management coaxial main rotor hover cfd urans method free wake model |
| title | Comparative Study of Coaxial Main Rotor Aerodynamics in the Hover with the Usage of Two Methods of Computational Fluid Dynamics |
| title_full | Comparative Study of Coaxial Main Rotor Aerodynamics in the Hover with the Usage of Two Methods of Computational Fluid Dynamics |
| title_fullStr | Comparative Study of Coaxial Main Rotor Aerodynamics in the Hover with the Usage of Two Methods of Computational Fluid Dynamics |
| title_full_unstemmed | Comparative Study of Coaxial Main Rotor Aerodynamics in the Hover with the Usage of Two Methods of Computational Fluid Dynamics |
| title_short | Comparative Study of Coaxial Main Rotor Aerodynamics in the Hover with the Usage of Two Methods of Computational Fluid Dynamics |
| title_sort | comparative study of coaxial main rotor aerodynamics in the hover with the usage of two methods of computational fluid dynamics |
| topic | coaxial main rotor hover cfd urans method free wake model |
| url | https://www.scielo.br/pdf/jatm/v13/2175-9146-jatm-13-e1821.pdf |
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